What you need to know in advertising today

Facebook Ever since Facebook acknowledged that Russian operatives meddled in last year's presidential election by targeting ads to narrow interest groups based on divisive issues like race and immigration, the social network has promised to build in safeguards to ensure that postings on sensitive issues receive human scrutiny.

The safeguards are meant to help screen out ads making use of overtly hateful categories like "Jew Haters," which was tested by ProPublica as a real filter for a hypothetical advertiser that made it past computer screening.

But a scan for other, albeit less inflammatory filters, shows that the social network still has its work cut out for it — around the world, according to a test by Business Insider.

To read more about how Facebook's ad-targeting engine allows marketers to target people by a number of political triggers that could be used to sway opinions or stir up divisions, click here.